Fig. 1
From: A spiral cystic fibroma originating from left ventricular fascicular muscle: a case report
A, B Transthoracic echocardiography revealed that a spiral cystic mass, 27 × 14 mm, located on the left ventricular apex. It looked like a conch floating in the left ventricle. C, D Intraoperative findings: A spiral cystic shape and 1.5 * 5 cm size of mass rooted on the left ventricular apex. The tumor was mainly soft and fragile, while the basement was partly calcified. E, F The conch has a similar silhouette and is an appropriate eponym of this sign